Globalization

The world is becoming more and more interconnected. Globalization changes how people consume, work and live almost everywhere on the world. Today, many economic, political, cultural or ecological relationships are not explainable from a national perspective. At the same time, a controversial debate about the consequences of globalization has begun.
But what are the main causes for globalization?
In what areas it is most prominent?
And who are the winners and looser of globalization?